New York Senate Majority Leader Joseph Bruno said he has resigned from his job with a consulting firm that led to criticism from good-government groups amid an FBI investigation into his private business dealings.

The Rensselaer County Republican said Friday he and Wright Investors' Service agreed to end their relationship on Monday.

The Milford, Conn., company manages major financial funds for some of the state's politically powerful unions. Bruno said he was ending the part-time job that had become a distraction.

"I have done so because the focus on my outside interests has taken attention away from more pressing issues such as our efforts to address the critical needs of our State going forward," Bruno said in a written statement released Friday. "There has been a great deal of discussion regarding the ability of part-time legislators to pursue outside interests. I look forward to the continuing debate over that idea and whether it makes sense to have a full-time legislature or part-time legislators who are allowed to have outside income."

Bruno has refused to say what his role was, how much he was paid or which clients he dealt with. His spokesman, John McArdle, continued to refuse to detail the private consulting role on Friday.

"Senator Bruno has complied completely and fully with all state disclosure requirements regarding any non-legislative business he and other legislators are allowed to engage in, and that includes the work he did for Wright Investment Services," McArdle said.

In New York, lawmakers are considered part-time and allowed to hold other jobs. Most of those jobs are with law firms, and lawmakers -- including Democratic Assembly Speaker Sheldon Silver -- don't divulge their clients, saying it would violate attorney-client privilege.

There was no immediate comment from Silver, Spitzer or from Wright Investors.

Bruno's annual ethics reports disclosed the employment, though not what he does there.

The state ethics law allows officials to have outside employment, though they cannot engage in activities that create or appear to create a conflict with their public duties, and they are barred from obtaining unwarranted privileges for themselves or others.

Eugene Helm, president of Wright Investors, told The New York Times that the company's relationship with unions predated Bruno's employment, which he described as "business development." He wouldn't disclose details.

Some of Bruno's outside business interests have been the subject of a federal investigation for more than a year, but Helm said earlier this month that his company has "never run afoul of the law or had a suit against us."

Officials from several unions that have pension or health funds managed by Wright said they didn't know Bruno worked there.

Government watchdog groups said that the situation highlights the weakness of ethics and disclosure laws in New York.